pysec - pysec-2018-13

pysec-2018-13

Vulnerability from pysec

Published

2018-01-18 21:29

Modified

2021-06-16 00:03

Details

An issue was discovered in markdown2 (aka python-markdown2) through 2.3.5. The safe_mode feature, which is supposed to sanitize user input against XSS, is flawed and does not escape the input properly. With a crafted payload, XSS can be triggered, as demonstrated by omitting the final '>' character from an IMG tag.

Impacted products

Name	purl
markdown2	pkg:pypi/markdown2

Aliases

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "markdown2",
        "purl": "pkg:pypi/markdown2"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.3.6"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.0.1.10",
        "1.0.1.11",
        "1.0.1.12",
        "1.0.1.13",
        "1.0.1.14",
        "1.0.1.15",
        "1.0.1.16",
        "1.0.1.17",
        "1.0.1.18",
        "1.0.1.19",
        "1.0.1.6",
        "1.0.1.7",
        "1.0.1.8",
        "1.0.1.9",
        "1.1.0",
        "1.1.1",
        "1.2.0",
        "1.3.0",
        "1.3.1",
        "1.4.0",
        "1.4.1",
        "1.4.2",
        "2.0.0",
        "2.0.1",
        "2.1.0",
        "2.2.0",
        "2.2.1",
        "2.2.2",
        "2.2.3",
        "2.3.0",
        "2.3.1",
        "2.3.2",
        "2.3.3",
        "2.3.4",
        "2.3.5"
      ]
    }
  ],
  "aliases": [
    "CVE-2018-5773",
    "GHSA-p6h9-gw49-rqm4"
  ],
  "details": "An issue was discovered in markdown2 (aka python-markdown2) through 2.3.5. The safe_mode feature, which is supposed to sanitize user input against XSS, is flawed and does not escape the input properly. With a crafted payload, XSS can be triggered, as demonstrated by omitting the final \u0027\u003e\u0027 character from an IMG tag.",
  "id": "PYSEC-2018-13",
  "modified": "2021-06-16T00:03:23.657711Z",
  "published": "2018-01-18T21:29:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://github.com/trentm/python-markdown2/issues/285"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/advisories/GHSA-p6h9-gw49-rqm4"
    }
  ]
}

ghsa-p6h9-gw49-rqm4

Vulnerability from github

Published

2018-07-12 20:29

Modified

2024-09-30 17:00

Severity ?

6.1 (Medium) - CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
5.3 (Medium) - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N

Summary

markdown2 is vulnerable to cross-site scripting

Details

An issue was discovered in markdown2 (aka python-markdown2) through 2.3.5. The safe_mode feature, which is supposed to sanitize user input against XSS, is flawed and does not escape the input properly. With a crafted payload, XSS can be triggered, as demonstrated by omitting the final > character from an IMG tag.

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "markdown2"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.3.6"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2018-5773"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-79"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2020-06-16T21:48:21Z",
    "nvd_published_at": null,
    "severity": "MODERATE"
  },
  "details": "An issue was discovered in `markdown2` (aka python-markdown2) through 2.3.5. The `safe_mode` feature, which is supposed to sanitize user input against XSS, is flawed and does not escape the input properly. With a crafted payload, XSS can be triggered, as demonstrated by omitting the final `\u003e` character from an IMG tag.",
  "id": "GHSA-p6h9-gw49-rqm4",
  "modified": "2024-09-30T17:00:47Z",
  "published": "2018-07-12T20:29:21Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2018-5773"
    },
    {
      "type": "WEB",
      "url": "https://github.com/google/osv/issues/430"
    },
    {
      "type": "WEB",
      "url": "https://github.com/trentm/python-markdown2/issues/285"
    },
    {
      "type": "WEB",
      "url": "https://github.com/trentm/python-markdown2/pull/303"
    },
    {
      "type": "WEB",
      "url": "https://github.com/trentm/python-markdown2/commit/1b1dcdd727c0ef03453b9f5ef5ae3679f1d72323"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/advisories/GHSA-p6h9-gw49-rqm4"
    },
    {
      "type": "WEB",
      "url": "https://github.com/pypa/advisory-database/tree/main/vulns/markdown2/PYSEC-2018-13.yaml"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/trentm/python-markdown2"
    },
    {
      "type": "WEB",
      "url": "https://github.com/trentm/python-markdown2/blob/master/CHANGES.md#python-markdown2-236"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "markdown2 is vulnerable to cross-site scripting"
}

CVE-2018-5773 (GCVE-0-2018-5773)

Vulnerability from cvelistv5

Published

2018-01-18 21:00

Modified

2024-09-16 17:47

Severity ?

CWE

Summary

References

URL

Tags

https://github.com/trentm/python-markdown2/issues/285

x_refsource_MISC

Impacted products

	Vendor	Product	Version
	n/a	n/a	Version: n/a

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-05T05:40:51.262Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/trentm/python-markdown2/issues/285"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
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        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "n/a",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2018-01-18T21:00:00Z",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/trentm/python-markdown2/issues/285"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "cve@mitre.org",
          "ID": "CVE-2018-5773",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "n/a",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "n/a"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "n/a"
              }
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        },
        "data_format": "MITRE",
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        "data_version": "4.0",
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            }
          ]
        },
        "problemtype": {
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                  "value": "n/a"
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        },
        "references": {
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  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
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    "datePublished": "2018-01-18T21:00:00Z",
    "dateReserved": "2018-01-18T00:00:00Z",
    "dateUpdated": "2024-09-16T17:47:46.652Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
Confirmed: The vulnerability is confirmed from an analyst perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
Patched: This vulnerability was successfully patched by the user reporting the sighting.
Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
Not confirmed: The user expresses doubt about the veracity of the vulnerability.
Not patched: This vulnerability was not successfully patched by the user reporting the sighting.

Action not permitted

pysec-2018-13

Vulnerability from pysec

ghsa-p6h9-gw49-rqm4

Vulnerability from github

CVE-2018-5773 (GCVE-0-2018-5773)

Vulnerability from cvelistv5

Tags

Sightings

Nomenclature